BMAP* circle; circle = bmap_createblack(sz[0],sz[0],24);
var format;
var i = 0;
var pixel;
var x;
var y;
var a;
format = bmap_lock(circle,0);
pixel = pixel_for_vec(clr[0],100,format);
while(i < 100)
{
a = 0;
while(a < 360)
{
x = sinv(a)*(sz[0]/2-i) + sz[0]/2;
y = cosv(a)*(sz[0]/2-i) + sz[0]/2;
pixel_to_bmap(circle,x,y,pixel);
a += 1;
}
i += 1;
}
bmap_unlock(circle);